该孔的物质主要来自古黄河和古长江,于滨岸带及相邻浅海和沿岸平原形成的第四纪沉积物.发现矿物51种,轻矿物主要由长石、石英和方解石组成;重矿物43种,含量为15.87%,主要由云母、角闪石、绿帘石、白云石、自生黄铁矿等十多种矿物组成.根据矿物分布、组合特征,可将该孔分为上、中、下三个矿物段,含十个矿物亚段.矿物段主要是物源区的产物,矿物亚段主要是环境变化的产物. The pore material mainly comes from the Quaternary sediments formed in the Yellow Sea and the ancient Yangtze River in the coastal zone and the adjacent shallow sea and coastal plain, 51 kinds of minerals are found, the light minerals are mainly composed of feldspar, quartz and calcite; heavy minerals 43 species with a content of 15.87%, mainly composed of over ten kinds of minerals such as mica, hornblende, epidote, dolomite and authigenic pyrite, etc. According to mineral distribution and combination characteristics, the pore can be divided into upper and middle , The next three mineral segments, including ten mineral sub-segments.The mineral segment is mainly the product of the source region, the mineral sub-segment is mainly the product of environmental changes.